Home / 82,710.90-124,078.67-38,342.15

Finding the Fourth Proportional to 82,710.90, 124,078.67 and 38,342.15

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Solution

The fourth proportional to 82,710.90, 124,078.67 and 38,342.15 is: 57,518.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,710.90 : 124,078.67 = 38,342.15 : x
  2. Step 2: Convert to fraction form
    82,710.90/124,078.67 = 38,342.15/x
  3. Step 3: Cross multiply
    82,710.90x = 124,078.67 × 38,342.15
  4. Step 4: Simplify right side
    82,710.90x = 4,757,442,164.84
  5. Step 5: Solve for x
    x = 4,757,442,164.84/82,710.90
  6. Step 6: Final answer
    x = 57,518.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.